Robust Cascade Control System for a Heat Exchanger Plant

Cascade control system is one of the popular and widely used for the petrochemical
or oil refinery plant. The obtained desired result from the system; the controller of
cascade control system should be designed in such way that it will satisfy all the
requirements needed. This project challenges the author to study the comparison in
performance of two controllers; the classical and robust cascade control system for a
heatexchanger plant. Twomajor efforts for this projectare plant experimentation and
computer simulation. Plant experimentation is conducted to identify the process
model for temperature and flow plant model. These models are then used in the
computer simulation to design and determine the performance for classical and robust
cascade control system. The classical cascade control system does give the satisfy
control performance compare to the robust cascade control system. However, the
robust cascade control system is not suitable to use in the present condition of the
plant and convenient to use for somecases only.